What Happened Here?

Harry reads the book Matilda. He can be smart, do math, and read books just like Matilda. Slowly, he lifts his finger and thinks one word - TILT! The glass of water tilts. He has telekinesis powers, and he's going to use them for good. Befuddled by the changes happening at Hogwarts, Harry's professors and friends have only one sentence to say. "What the heck just happened here?"